Abstract

The aim of this study is to analyze both the monthly and the annual distributions
of both the frequency of rainy days and the rainfall intensity in Peninsular
Malaysia. The most relevant findings of this study may be summarized as: (a)
the monthly distribution of the frequency of rainy days is similar to the monthly
rainfall distribution at the western side of the principal mountain range; (b) an
important gradient of both the frequency of rainy days and the rainfall intensity
is recorded at the Titiwangsa mountain range where a maximum is observed at
its western side and a minimum at its eastern side; (c) the distribution of both
the frequency of rainy days and the rainfall intensity is very homogeneous from
the eastern side of the mountain range up to a distance of 50 km from the east
coast; and (d) minimum of both the frequency of rainy days and intensity
rainfall is recorded in the northwestern sector of the Peninsula during the
boreal winter.